Home / 38,821,825.80-53,573,748.66-21,418,311.24

Finding the Fourth Proportional to 38,821,825.80, 53,573,748.66 and 21,418,311.24

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Solution

The fourth proportional to 38,821,825.80, 53,573,748.66 and 21,418,311.24 is: 29,557,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,821,825.80 : 53,573,748.66 = 21,418,311.24 : x
  2. Step 2: Convert to fraction form
    38,821,825.80/53,573,748.66 = 21,418,311.24/x
  3. Step 3: Cross multiply
    38,821,825.80x = 53,573,748.66 × 21,418,311.24
  4. Step 4: Simplify right side
    38,821,825.80x = 1,147,459,223,093,412.75
  5. Step 5: Solve for x
    x = 1,147,459,223,093,412.75/38,821,825.80
  6. Step 6: Final answer
    x = 29,557,064.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.